England.  Change location

Electronics: signal processing, control and communications

This module teaches industry-relevant skills in applying analogue and digital electronics to signal processing, control and communications. Signal processing looks at how analogue or digital filters can remove signal noise. Control shows how using feedback and a suitable controller can change the dynamic behaviour of processes (electronic/mechanical or other) to meet a desired criterion. Communication shows how cables and radio waves can communicate data.

Modules count towards OU qualifications

OU qualifications are modular in structure; the credits from this undergraduate module could count towards a certificate of higher education, diploma of higher education, foundation degree or honours degree.

Browse qualifications in related subjects


Module code




  • Credits measure the student workload required for the successful completion of a module or qualification.
  • One credit represents about 10 hours of study over the duration of the course.
  • You are awarded credits after you have successfully completed a module.
  • For example, if you study a 60-credit module and successfully pass it, you will be awarded 60 credits.

Study level

Across the UK, there are two parallel frameworks for higher education qualifications, the Framework for Higher Education Qualifications in England, Northern Ireland and Wales (FHEQ) and the Scottish Credit and Qualifications Framework (SCQF). These define a hierarchy of levels and describe the achievement expected at each level. The information provided shows how OU module levels correspond to these frameworks.
Level of Study
3 10 6

Study method

Module cost

Entry requirements

Student Reviews

I studied this module as part of Q78 Top Up from an HND Mech Eng. Consequently, I only had a...
Read more

Request your prospectus

Explore our subjects and courses

Request your copy now

What you will study

This module takes the ideas that you know about basic electronic circuits, together with general engineering principles, and looks at three of the main applications of electronics. It comprises three blocks: signal processing, control and communications.

Interactive software and OpenEngineering Laboratory experiments support the course materials in all three blocks. Throughout the module, we use illustrative case studies.

Block 1: Signal processing
The first block introduces you to signal processing. It starts by defining what we mean by noise in a signal, showing how to explain this in the frequency domain. It then shows how we can remove the noise with the use of analogue electronic circuits – called filters. We’ll show you how to design filters to perform specific tasks by using mathematical models. We’ll also give you a refresher on complex numbers. The block ends with a look at digital filters. First, how we can design filters that run on computers and can perform many of the filtering tasks of analogue circuits. Finally, we look at aspects of processing that we can only do with digital signals, such as image processing.

Block 2: Control
This block introduces the idea of control theory. It discusses the basic principle of using feedback, as well as processes’ transient responses. Block 2 extends some of the ideas of mathematical modelling introduced in Block 1, so you can start designing controllers that produce the desired behaviour of a process. You’ll spend some time looking at how to implement controllers electronically in both analogue circuits and as digital algorithms. You’ll then look at some of the ideas of intelligent control, specifically fuzzy logic control and neural networks.

Block 3: Communication
The final block introduces the principles of communication, with emphasis on radio communications. It starts by looking at modulation, and how to encode a message into a radio frequency waveform. It shows the design and implementation of transmission and receiver circuits, and how radio frequency circuits differ from electronic circuits. You’ll consider aspects of both analogue and digital communications and explore the advantages of each. Finally, you’ll look at space communications – the problems that are inherent, together with the solutions.

You will learn

The knowledge and skills developed in this module are applicable in various engineering roles. At the end of it you’ll be able to:

  • describe the application of electronic systems in signal processing, control and communications
  • search and use relevant journal papers via the library website
  • work with signals, including sampling and filtering
  • design controllers to achieve a desired dynamic response
  • design radio frequency circuits for transmitters and receivers
  • work with equipment using the OpenEngineering Laboratory.

Vocational relevance

This module will help you to gain knowledge and skills that are essential for the practising engineer. It can help you to:

  • be aware of the role played by electronics in general engineering
  • apply standard electronic theory to practical engineering problems
  • use industry-standard software to solve problems
  • use industry-standard hardware in electronics engineering in the OpenEngineering Laboratory
  • reflect on and improve your personal and professional development as an engineer.

Teaching and assessment

Support from your tutor

Throughout your module studies, you’ll get help and support from your assigned module tutor. They’ll help you by:

  • Marking your assignments (TMAs) and providing detailed feedback for you to improve.
  • Guiding you to additional learning resources.
  • Providing individual guidance, whether that’s for general study skills or specific module content.
  • Facilitating online discussions between your fellow students, in the dedicated module and tutor group forums.

Module tutors also run online tutorials throughout the module. Where possible, recordings of online tutorials will be made available to students. While these tutorials won’t be compulsory for you to complete the module, you’re strongly encouraged to take part.


The assessment details for this module can be found in the facts box.

Both the TMAs and EMA assess the module material as well as practical (Open Engineering Lab) and simulation activities.

Block quizzes help you prepare for the assessments. The quizzes don’t count towards the final mark. Their purpose is to support your learning and determine for yourself how well you’ve understood the teaching.

Future availability

Electronics: signal processing, control and communications (T312) starts once a year – in October.

This page describes the module that will start in October 2024.

We expect it to start for the last time in October 2026.


As a student of The Open University, you should be aware of the content of the academic regulations which are available on our Student Policies and Regulations website.

Course work includes:

3 Tutor-marked assignments (TMAs)
1 Interactive computer-marked assignment (iCMA)
End-of-module assessment

Entry requirements

There are no formal entry requirements to study this module.

However, we recommend you have one of the following:

  • passes in Electronics: sensing, logic and actuation (T212) and Engineering: mathematics, modelling, applications (T194)
  • engineering knowledge equivalent to OU level 1 and mathematical knowledge to A-level or above; plus a pass in an electronics module from another institution at FHEQ level 5/SCQF level 9

If you’re not sure you’re ready, talk to an adviser.


Start End England fee Register
05 Oct 2024 Jun 2025 £1818.00

Registration closes 05/09/24 (places subject to availability)

This module is expected to start for the last time in October 2026.

Additional Costs

Study costs

There may be extra costs on top of the tuition fee, such as set books, a computer and internet access.

If your income is not more than £25,000 or you receive a qualifying benefit, you might be eligible for help with some of these costs after your module has started.

Ways to pay for this module

Open University Student Budget Account

The Open University Student Budget Accounts Ltd (OUSBA) offers a convenient 'pay as you go' option to pay your OU fees, which is a secure, quick and easy way to pay. Please note that The Open University works exclusively with OUSBA and is not able to offer you credit facilities from any other provider. All credit is subject to status and proof that you can afford the repayments.

You pay the OU through OUSBA in one of the following ways:

  • Register now, pay later – OUSBA pays your module fee direct to the OU. You then repay OUSBA interest-free and in full just before your module starts. 0% APR representative. This option could give you the extra time you may need to secure the funding to repay OUSBA.
  • Pay by instalments – OUSBA calculates your monthly fee and number of instalments based on the cost of the module you are studying. APR 5.1% representative.

Joint loan applications

If you feel you would be unable to obtain an OUSBA loan on your own due to credit history or affordability issues, OUSBA offers the option to apply for a joint loan application with a third party. For example, your husband, wife, partner, parent, sibling or friend. In such cases, OUSBA will be required to carry out additional affordability checks separately and/or collectively for both joint applicants who will be jointly and severally liable for loan repayments.

As additional affordability checks are required when processing joint loan applications, unfortunately, an instant decision cannot be given. On average the processing time for a joint loan application is five working days from receipt of the required documentation.

Read more about Open University Student Budget Accounts (OUSBA).

Employer sponsorship

Studying with The Open University can boost your employability. OU courses are recognised and respected by employers for their excellence and the commitment they take to complete. They also value the skills that students learn and can apply in the workplace.

More than one in ten OU students are sponsored by their employer, and over 30,000 employers have used the OU to develop staff so far. If the module you’ve chosen is geared towards your job or developing your career, you could approach your employer to see if they will sponsor you by paying some or all of the fees. 

  • Your employer just needs to complete a simple form to confirm how much they will be paying and we will invoice them.
  • You won’t need to get your employer to complete the form until after you’ve chosen your module.  

Credit/debit card

You can pay part or all of your tuition fees upfront with a debit or credit card when you register for each module. 

We accept American Express, Mastercard, Visa and Visa Electron. 

Mixed payments

We know that sometimes you may want to combine payment options. For example, you may wish to pay part of your tuition fee with a debit card and pay the remainder in instalments through an Open University Student Budget Account (OUSBA).

Please note: your permanent address/domicile will affect your fee status and, therefore, the fees you are charged and any financial support available to you. The fee information provided here is valid for modules starting before 31 July 2025. Fees typically increase annually. For further information about the University's fee policy, visit our Fee Rules

This information was provided on 22/05/2024.

Can you study an Access module for free?

Depending on eligibility and availability of places, you could apply to study your Access module for free.

To qualify, you must:

  1. be resident in England
  2. have a household income of less than £25,000 (or be in receipt of a qualifying benefit)
  3. have not completed one year or more on any full-time undergraduate programme at FHEQ level 4 or above or successfully completed 30 credits or more of OU study within the last 10 years

How to apply to study an Access module for free

Once you've started the registration process, either online or over the phone, we'll contact you about your payment options. This will include instructions on how you can apply to study for free if you are eligible and funded places are still available.

If you're unsure if you meet the criteria to study for free, you can check with one of our friendly advisers on +44 (0)300 303 0069, or you can request a call back.

Not eligible to study for free?

Don't worry! We offer a choice of flexible ways to help spread the cost of your Access module. The most popular options include:

  • monthly payments through OUSBA
  • part-time tuition fee loan (you'll need to be registered on a qualification for this option)

To explore all the options available to you, visit Fees and Funding.

What's included

You’ll have access to a module website, which includes:

  • a week-by-week study planner
  • course-specific module materials
  • audio and video content
  • access to interactives, Multisim Live online circuit simulation software and the remote OpenEngineering Laboratory to carry out practical activities
  • assessment details and submission section
  • online tutorial access.

You’ll also be provided with three printed module books, each covering one block of study and written especially for the module to explain the theory behind signal processing, control and communications. There are also three printed practical activities guides each covering one Block of practical activities.

Computing requirements

You’ll need broadband internet access and a desktop or laptop computer with an up-to-date version of Windows (10 or 11), or macOS Ventura or higher.

You'll also need control over your internet connection settings – corporate firewalls may prevent access to our Open Engineering Lab.

To join in spoken conversations in tutorials we recommend a wired headset (headphones/earphones with a built-in microphone).

Our module websites comply with web standards and any modern browser is suitable for most activities.

Our OU Study mobile App will operate on all current, supported, versions of Android and iOS. It’s not available on Kindle.

It’s also possible to access some module materials on a mobile phone, tablet device or Chromebook, however, as you may be asked to install additional software or use certain applications, you'll also require a desktop or laptop as described above.

If you have a disability

The OU strives to make all aspects of study accessible to everyone and this Accessibility Statement outlines what studying T312 involves. You should use this information to inform your study preparations and any discussions with us about how we can meet your needs.

To find out more about what kind of support and adjustments might be available, contact us or visit our disability support pages.